A Survey of Physical Layer Security Techniques for 5G Wireless Networks and Challenges Ahead

By Yongpeng Wu, Ashish J. Khisti, Chengshan Xiao, Giuseppe Caire, Kai‐Kit Wong, Xiqi Gao. IEEE Journal on Selected Areas in Communications, 2018

736 citations recorded by the source corpus.

Physical layer security which safeguards data confidentiality based on the information-theoretic approaches has received significant research interest recently. The key idea behind physical layer security is to utilize the intrinsic randomness of the transmission channel to guarantee the security in physical layer. The evolution toward 5G wireless communications poses new challenges for physical layer security research. This paper provides a latest survey of the physical layer security research on various promising 5G technologies, including physical layer security coding, massive multiple-input multiple-output, millimeter wave communications, heterogeneous networks, non-orthogonal multiple access, full duplex technology, and so on. Technical challenges which remain unresolved at the time of writing are summarized and the future trends of physical layer security in 5G and beyond are discussed.

Subfields: Computer Networks and Communications, Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/022608dadaf6db02620f4cebb1cb50a10e3aae1d

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Citations in the corpus

6G Wireless Communications: Vision and Potential Techniques (2019, neutral): “[14] Y.”
Quantum Machine Learning for 6G Communication Networks: State-of-the-Art and Vision for the Future (2019, background): “In order to secure the 6G communication links, physical layer security schemes [71] may be deployed in tandem with conventional cryptography schemes.”
5G Key Technologies for Smart Railways (2020, background): “Security has been one of the fundamental capabilities that operators should provide to their customers, especially to train operation control systems [145].”
Security for 5G and Beyond (2019, background): “The security vulnerabilities in massive MIMO: passive eavesdropping and active eavesdropping, are described in [20].”
Cell-Free Massive MIMO: A New Next-Generation Paradigm (2019, background): “Although PLS in centralized massive MIMO networks has received much attention in the literature [54], the combination of PLS and CF massive MIMO is still limited in the existing literature.”
Physical-Layer Security of 5G Wireless Networks for IoT: Challenges and Opportunities (2019, background): “It should be noted that there are existing survey papers on IoT security or PLS research [4], [15]–[18].”